Soldering is a learned art in which there are many
techniques, tools and materials to achieve the same results.
A basic understanding of the process and the means to
accomplish the ends is highly desirable to avoid failure.
Then a wise choice of method and components can be made
for the job at hand..
For more details with methods and extensive discussion of
problems and solutions, see first site below in soldering.
Hope this helps.
MODELRAILROAD TECHNICAL INFORMATION
PROTOTYPE TECHNICAL INFO FOR MODELRAILROADERS
(Revised. New address)
MR TECHNICAL HELP GROUP
COUPLER HELP GROUP